diff --git a/include/engine.hpp b/include/engine.hpp
index 0f87add..ec11e23 100644
--- a/include/engine.hpp
+++ b/include/engine.hpp
@@ -41,7 +41,7 @@ public:
     /**
      * Ajoute un nouvel objet à la liste des objets du jeu
      */
-    void addObject(Object* object);
+    void addObject(Object& object);
 };
 
 #endif
diff --git a/src/engine.cpp b/src/engine.cpp
index ed65df6..55f7a7c 100644
--- a/src/engine.cpp
+++ b/src/engine.cpp
@@ -51,8 +51,8 @@ void Engine::start() {
     }
 }
 
-void Engine::addObject(Object* object) {
-    objects.push_back(object);
+void Engine::addObject(Object& object) {
+    objects.push_back(&object);
 }
 
 void Engine::update() {
diff --git a/src/main.cpp b/src/main.cpp
index 05f4bd2..5299512 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -19,13 +19,13 @@ int main() {
     ball2.setCharge(-2);
     block3.setCharge(10);
 
-    engine.addObject(&ball1);
-    engine.addObject(&ball2);
-    engine.addObject(&block1);
-    engine.addObject(&block2);
-    engine.addObject(&block3);
-    engine.addObject(&block4);
-    engine.addObject(&block5);
+    engine.addObject(ball1);
+    engine.addObject(ball2);
+    engine.addObject(block1);
+    engine.addObject(block2);
+    engine.addObject(block3);
+    engine.addObject(block4);
+    engine.addObject(block5);
 
     engine.start();
     return 0;